Method and device for setting ink-conducting rotational bodies of a printing press

Patent metadata

Field	Value
Publication number	US-9486993-B2
Application number	US-201414894541-A
Country	US
Kind code	B2
Filing date	May 23, 2014
Priority date	Sep 9, 2013
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

Rotational bodies of a printing press with at least a first, a second and a third ink-conducting rotational body, which interact with each other in pairs, can be set in a thrown-on position. The second of the at least three rotational bodies can be set both against the first of the three rotational bodies and against the third of the three rotational bodies in order to form a two-sided thrown-on position. Tracking, coupled in a defined way, of the rotational axis of the second rotational body takes place at the same time as a radial positional change of the rotational axis of the first rotational body, by the superimposition of two movements along two non-congruent movement paths which run in a plane which is perpendicular with respect to the rotational axis. A device for setting rotational bodies of a printing press is also provided.

First claim

What is claimed is:

1. Method for setting rotational bodies of a printing press having at least a first, a second and a third ink-conducting rotational body ( 21 ; 22 ; 23 ) which interact in each case in pairs in a thrown-on position, and wherein the second of the at least three rotational bodies ( 22 ) is set both against the first of the three rotational bodies ( 21 ) and against the third of the three rotational bodies ( 23 ) in order to form a two-sided thrown-on position, characterised in that tracking, coupled in a defined way, of the rotational axis (R 22 ) of the second rotational body ( 22 ) takes place at the same time as a radial positional change of the rotational axis (R 21 ) of the first rotational body ( 21 ), by way of the superimposition of two movements along two non-congruent movement paths which run in a plane which is perpendicular with respect to the rotational axis (R 22 ) of the second rotational body ( 22 ).

2. Method according to claim 1 , characterised in that the superimposition of the two movements takes place by simultaneous adjustment of a first adjusting element ( 49 ), in particular configured as a first eccentric ring ( 49 ), and of a second adjusting element ( 51 ) configured in particular as a second eccentric ring ( 51 ).

3. Method according to claim 2 , characterised in that the adjustment of the first and second adjusting member ( 49 ; 51 ) each occurs by a positional change of a limit stop ( 71 ; 72 ) that limits the travel in the direction of the throw-on position.

4. Method according to claim 3 , characterised in that the positional change of the limit stops ( 71 ; 72 ) occurs by a mechanical coupling towards the adjusting mechanism ( 48 , 55 ; 61 , 81 ) of the first rotational body ( 21 ).

5. Method according to claim 3 , characterized in that the positional change of the two limit stops ( 71 ; 72 ) is effected by at least one adjusting drive ( 112 ; 113 ) that is mechanically independent from the adjusting mechanism ( 48 , 61 , 81 ) of the first rotational body ( 21 ).

6. Method according to claim 3 , characterised in that in each case a lever ( 84 ; 87 ) surrounding the respective limit stop ( 71 ; 72 ) is pivoted so as to change the position of the limit stops ( 71 ; 72 ).

7. Method according to claim 2 , characterised in that the adjustment of the first and second adjusting element ( 49 ; 51 ) is in each case effected by an adjusting drive ( 112 ; 113 ) that directly or indirectly engages with the respective adjusting element ( 49 ; 51 ) that is mechanically independent from the adjusting mechanism ( 48 , 61 , 81 ) of the first rotational body ( 21 ).

8. Method according to claim 7 , characterised in that a control means ( 111 ) acts on the adjusting drive ( 112 ; 113 ) to effect its operation, and the setting occurs by use of an information and/or dimension (I 21,x ) characterising the position (x) and/or a positional change (Δx) of the first rotational body ( 21 ) or its mounting arrangement.

9. Device for setting rotational bodies of a printing press having, at least a first, a second and a third ink-conducting rotational body ( 21 ; 22 ; 23 ), which interact in each case in pairs in a thrown-on position, wherein the second of the at least three rotational bodies ( 22 ) is radially movably mounted in a one- or multi-piece frame ( 47 ) between the first and the third rotational body ( 21 ; 23 ) such that it can be selectively brought into a thrown-on position in which it is set against the first rotational body ( 21 ) and the third rotational body ( 23 ), or into a thrown-off position in which it is out of contact with at least one of the two other rotational bodies ( 21 ; 23 ), wherein for mounting of the second rotational body ( 22 ) a bearing arrangement ( 46 ) is provided at the front comprising two adjusting elements ( 49 ; 51 ) for the radial movement of the second rotational body ( 22 ) by way of superimposition of two non-congruent movements each having a radial movement component, characterised in that a forced two-sided tracking of the second rotational body ( 22 ) is provided, which comprises a coupling of a movement of the two adjusting elements ( 49 ; 51 ) to a radial movement of the first rotational body ( 21 ) in a defined way such that a radial movement of the first rotational body ( 21 ) over a travel greater than zero at the same time effects a forced tracking of the two adjusting elements ( 49 ; 51 ) positioning the second rotational body ( 22 ) each by a defined travel that is greater than zero.

10. Device according to claim 9 , characterised in that for coupling an adjusting mechanism is provided that interacts with the adjusting elements ( 49 ; 51 ) by which the re-adjustment of the two adjusting elements ( 49 ; 51 ) with respect to their movement is mechanically coupled with an adjusting mechanism ( 48 , 55 ; 61 , 81 ) effecting the radial movement of the first rotational body ( 21 ).

11. Device according to claim 10 , characterized in that for each adjusting element ( 49 ; 51 ) a limit stop ( 71 ; 72 ) is provided that limits the movement of the respective adjusting element ( 49 ; 51 ) in a setting direction in particular in the direction of a throw-on position, against which in a thrown-on position an adjusting element-fixed counterstop ( 73 ; 74 ) is set, and which is positionally adjustably configured with respect to the position of a contact point with the adjusting element-fixed counterstop ( 73 ; 74 ).

12. Device according to claim 11 , characterised in that the two position-adjustable limit stops ( 71 ; 72 ) are mechanically coupled with respect to their movement to an adjusting mechanism ( 48 , 55 ; 61 , 81 ) effecting the radial movement of the first rotational body ( 21 ).

13. Device according to claim 12 , characterised in that the mechanical coupling is serially configured by the adjusting mechanism ( 48 , 55 ; 61 , 81 ) of the first rotational body ( 21 ) acting directly or indirectly on one of the two movable limit stops ( 71 ; 72 ), and acting via the movement of the associated adjusting element ( 49 ; 51 ) directly or indirectly on the other of the two limit stops ( 72 ; 71 ).

14. Device according to claim 9 , characterised in that the coupling is realized in a circuit-technical and/or control-technical way, wherein an electronic control centre ( 111 ) is provided for coupling which acts on at least one adjusting drive ( 112 ; 113 ) that is mechanically independent of an adjusting mechanism ( 48 , 55 ; 61 , 81 ) that effects the radial movement of the first rotational body ( 21 ).

15. Device according to claim 14 , characterised in that a clear assignment is implemented in the control centre ( 111 ) between an information or dimension (I 21,X ) characterising a position (x) or positional change (Δx) of the first rotational body ( 21 ) and an information (I 22,y ) relating to a target position (y; z) or target position change (δy; δz) of information relating to the tracking of the second rotational body ( 22 ) by means of the first and/or second adjusting element ( 49 ; 51 ).

16. Device according to claim 9 , characterised by the configuration of the second rotational body ( 22 ) being a cylinder ( 22 ) of an Orlof printing press ( 26 ), being a printing unit ( 03 ) of a securities printing press.

Assignees

• Koenig & Bauer Ag

Inventors

• Kress Patrick
• Palme Martin
• Schwitzky Volkmar

Classifications

• B41F13/36

  Cams, eccentrics, wedges, or the like · CPC title

• B41F3/58 Primary

  Driving, synchronising, or control gear · CPC title

• B41F31/34 Primary

  Cam, eccentric, wedge, or like devices · CPC title